Supplemental spring for vehicles



Se t, 21,1926. 1,600,448

I I A. J. F. WRIGHT SUPPLEMENTAL SPRING FOR VEHICLES Filed Dec. 9, 1925 INVENTUR.

(L FW/ located at opposite sides of an axle.

xatented Sept. 21, 1926.

UNITED STATES PATENT OFFICE.

ALFRED J. F. wnrerrr, or ronon ro, ONTARIO, CANADA.

surrrn mnnran sr nme For; VEHICLES.

Application filed December 9, 19 2 5- eria1 No. 74,331.

This invention relates to supplemental springs arranged as shock absorbing devices.

for vehicles, of the type adapted to'co-operate with the main springs of the vehicle to prevent excessive reaction of the same and to increase the efficiency of the spring hereinafter more fully described and illustrated in the accompanying drawing" in which Fig. 1 is a front elevation of part of an 'aiitomob'le, partly broken away to show a front elevation of the forward and rear main springs with any invention in place thereon; I

'Fig. 2 a lan view, on an enlarged scale, of the suppemental springs used on the forward main spring;

Fig. 3 a rear view of the same;

Fig. 4 a front-view of the same;

Fig. '5 a plan view, on an enlarged scale, 1

of the supplemental springs used on the rear main spring; and

Fig. 6 a front view of the same.

'In' the drawings like numerals of reference indicate corresponding parts the different figures. 1

1 is the front axle and 2 therear'axlc housing of the vehicle. '3 and 4 are the front-and rear mainsprings and'5 is part of the body of the vehicle, 1 Each of my improved supplemental springs 6 comprises two pairs of spriigs ne spring of each pair 'is -located above the other spring and the free-ends of the four springs are connecte'd by meansof a shackle with an end o'f-a main spring. Ea ch pair of the supplemental springs is formed by bend- ,ing a rectangular, cross sectioned strip of spring steel to form oppositely disposed C shaped springs 7 and 8. The free ends 7 I and 8 of each pair of springs are twisted through an arc of substantially 90 and these twisted ends are provided with holes adapted to receive the legs of a shackle 15 as hereinafter described. The pairs of spr ng fo ming a upp e e al Sp ng un t are c mp d si by id 't a tran veraely arranged supporting member 9 or. 10.

v The supporting members 9 are detachably connected with "the front axle, as follows.

he pe h a ri d by h aid and whi h s orig na ly conne ted w th end of th om .Ifiei spring 3 ur on r x s wua an ambi .l. Ea h supp is tormed by a pair ,ofangle brackets secured by means of a bolt 12 tofopposite sides of the perch 11; i The brackets are pro.-

ded th nw rdly d rec e l p da ang of F1 1 tiqn d front axle e i e ,A ibpl 1e passed htough th bra kt i adapted to hold the line in en a ement with the axle which arrangement mateto enga e he unde side .o th uppe ally lessens the bend n str ss th perch;

Th "leg 1.5 i "5 shackl L is Passed r ug t e ho e in h fi es en o the upper springs 7 the other leg 1-5" of the shackle isipassed thrgugh the holesv in the ends 8 of the lower springs 8.

g 1. is als pa ed hz rc e'h a li ye Q11 the main sp in wh ch li s be w e thefle ds 8a at as imphmenta rin s- Te suppor ing' members 10 are detachably connected with the brake drum disks 16, carried by ,the rearaxle housing 2, as fol s lie c efo c ach ndo h t a 'ma spring 4 was carried on a perch secured to the d sk 16. jI now use a bolt instead ofthijs 1 perch and pass it through a'hole 18 formed in the memberlO. Anut' on the bolt holds: the member in position. To further secure the member I provide with depending arms 1O" and 10*, the arm 1O being" provided with a hole to receive the usual hand brake pivot cam .stud which passes through the disk and has a nut threaded on its outer end.xThe arm 10 is formed with an offset so that 'it will. clear the radius or torque arm 20 connected with the disk 16. The arm 10 is also provided sitioned in front of the with a hole for receiving one of the bolts or studs for securing the radius arm to the disk.

The lower springs 8 located in the rear of the front axle are bent as indicated at 8 to clear the front radius rods 21. The lower springs 8 in front ofthe rear axle are also shaped differently than those in the rear thereof, to clear the radius arms 20.

It will be noted that the axes of the lower legs 15" of the shackles are normally poaxes of the upper legs 15. In other words the shackle is inclined fronr the vertical towards the upper leg. l i hen the vehicle is loaded the main spring" straightens out and swings the shackle towards or slightly past the vertical, which results in the lower springs being acted on first. A further movement of the main springs causes the lower springs tobe further compressed and the upper springs to be expanded. Any shock from the road is transmitted to one or both axles, this results in the lower springs being still further compressed and the upper springs being further expanded. 'Any slight shocks or jars will thus be absorbed by the supplemental springs and if the shock is severe it will result in the main springs being brought into action. 'In either case the vibrations of each supplemental spring are working against the vibrations of the opposite spring which tends to stop the vibration of the supplemental springs and also .1 HALE the vibration of the main springs. As the lower springs 8 are chiefly used as compression springs they are made longer than the upper springs 7 When the Vehicle is loaded to straighte out the main springs to the point where the shackles 15 are swung to the vertical, the springs 8 act againstthe ends of the main springs to tend to prevent. any tendency of the latter to swing sideways.

What I claim is:

1. In. a vehicle's rin thecombination.

i with a main spring, of a pair of oppositely disposed C shaped supplemental springs formed integral and rigidly supported, intermediate the ends thereof, on a vehicle element; and means for connecting the free ends of the C springs with the main sprin 2. In a vehicle spring, the combination with a main spring, of pairs of oppositely disposed C shaped supplemental springs, the pairs being arranged side by side, each pair having their adjacentends supported on a vehicle element; and a shackle for connecting the free ends of the C springs with the main spring.

In a vehicle spring, the combination with amain spring, of pairs of oppositely disposed C shaped supplemental springs, the pairs being arranged side by side, each pair being formed integral and rigidly supwith a main spring, of an integral pair of supplemental springs arranged one above the other and supported intermediate their ends on a vehicle element; and means for connecting the free ends of the palr of springs with the main spring.

6. In a vehicle spring, the combination with a main spring, of pairs of oppositely disposed C shaped supplemental springs, the springs of each pair being arranged one above the other and supported intermediate their ends on a vehicle element; and a shackle for connecting the freeends of the lower springs with the free ends of the up;

-per springs and with the main spring.

7. In a vehicle spring, the combination with a main spring, of pairs ofoppositely disposed C the springs of each pair being arranged one above the other and supported intermediate shaped supplemental springs,.

their ends on a vehicle element, the lower springs being longer than the upper springs; and a shackle for connecting the free ends of the lower springs With the uppersprings and with the main spring.

8. In a vehicle spring, the combination with amain spring, of pairs of oppositely disposed C shaped supplemental springs, the springs of each pair being arranged one above the other and supported intermediate their ends on r a vehicle element; and 'a shackle having one leg connecting the uppersprings of each pair and having its other leg connecting the lower springs and the main spring, the axis of the lower leg being normally positioned in front of'the axis of the upper leg whereby the shackle is swung towards the vertical and the lower spring'is acted on first when the initial load is applied torthe main spring.

9. In a vehicle spring, the combination with a main spring, of pairs of oppositely disposed C shaped supplemental sprin s, the

springs of each pair being arranged one above the other and supported intermediate their ends on a vehicle element. the lower.

springs being longer than the upper spr1ngs;'and a shackle having oneleg. connecting the upper springs of each pairand the free ends of the shackle is swung towards the vertical and the lower spring is acted on first when the main spring is straightened out.

10. In a vehicle spring, the combination with a main spring, of pairs of oppositely disposed C shaped supplemental springs, the springs of each pair being arranged one above the other and formed of a rectangular cross sectional strip having the portion between the springs supported on a vehicle element, the free ends of the spring strips being twisted through an arc of substan-.

tially 90 and provided with holes; and a shackle having one leg passed through the holes of corresponding springs of each pair and having its other leg passed through the holes of the other corresponding springs and through an eye on the main spring.

11. In a vehicle spring, the combination with a main spring, of two C shaped supplemental springs supported at opposite ends of a vehicle element and having their free ends connected with the opposite ends of the maln sprmg; and spring means tending to preventthe main spring from swinging sideways.

12. In a vehicle spring, the combination with a main spring, of two C shaped supplemental springs rigidly supported at opposite ends ofa vehicleelement; and shackles,

each having oneend pivotally connected with one end of the main spring and the other end pivotally connected with the free end of the adjacentjsupplemental spring.

13. In a vehicle sprlng, the combination with a main spring, of two C shaped supplemental springs rigidly supported at opposite ends of a vehicle element; shackles for connecting the. free ends of the supplemental springs with the adjacent ends of the main spring; "and resilient means tendring to prevent 'the shackles from swinging sideways. I

Signed at Toronto, Canada, this 26th day of November, 1925.

ALFRED J. F. WVRIGHT, 

